Here is the full list of all 23 Walhall achievements.
Thank you for playing!
You're the real champion!
REAL blue hedgehog!
As if it wasn't hard enough
Deceiving death itself
Like a blue hedgehog!
Button 2 is more useful now
One after the other!
It gets spiky
Gotta shoot fast
Babies make you tougher
You're gonna love 'em
Copying enemy movements
A new challenger appears!
He lost his drill for...
You're feeling tough
He also wants to hit
Helps hitting your target
At last you can watch it
Speed up!
Your actions are under control
Take me seriously!
I'm gonna catch you!